1
2
3
4
Fuel Pump Harness Connector SO29
FE02-5119b
(a)
Turn the ignition switch to "OFF" position.
(b)
Disconnect fuel pump harness connector SO29.
(c)
Connect scan tool.
(d)
Turn the ignition switch to "ON" position.
(e)
Select scan tool "Fuel Pump Relay" in the "Action Test" to
drive the fuel pump relay.
(f)
Connect SO29 terminal 3 and 4 with a test lamp.
Is test lamp lit properly?
Yes
No
Step 6
Repair the fuel pump circuit.
1
2
3
4
Fuel Pump Harness Connector SO29
FE02-5120b
(a)
Turn the ignition switch to "ON" position.
(b)
Check the fuel pump working circuits. Repair the fuel pump
relay open circuit fault between SO29 terminal No.3 and No.
5.
Start the engine, fault solved?
Yes
System normal
No
Step 7
Check the fuel pressure.
(a)
Turn the ignition switch to "OFF" position.
(b)
Install fuel pressure gage and connect scan tool.
(c)
Turn the ignition switch to "ON" position.
(d)
On the scan tool, select scan tool "Fuel Pump Relay" in the
"Action Test" to drive the fuel pump relay.
Standard Fuel Pressure Value: 400 kPa
Is fuel pressure normal?
Yes
No
Step 8
Replace the fuel pump.
(a)
Turn off the ignition switch and remove the ignition key.
Engine
Control System JL4G18-D
2-201
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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